We are all limited by what we have seen, but from what I have seen Masonry is a noble institution. I can't say enough good about it.
I became a Mason in 1999 and learned all I could about it. I was interested in Masonry though long before I joined as some of my historical heroes were Masons: George Washington, Benjamin Franklin, John Adams, and Thomas Jefferson.
Masonry is not a religion. Is it just a fraternity? For some yes but for others it is much much more. Is it a secret society? If it is, it is the worst kept secret ever. Within Masonry there are secrets about how we recognize each other but that is about it.
The way I would describe Masonry is it is an institution to make men better men. I have met some Masons who were disappointing but for the most part all the Masons I have known were men of high character.
When I went through some very difficult times my Masonic brothers took very good care of me. It was because of Masonry that I would go on to become saved.
I have heard the stories about demonic rituals and pagan beliefs but I have never seen any indication of such within Masonry and I was an officer of a lodge whose duties it was to teach about Masonry.
Is there the potential that there are Masonic Lodges out there practicing such odd things? Yes, but then they are doing so outside the teaching of Masonry and are acting on their own, the same as a Christian church teaching things that don't follow the teachings of Jesus.
God is very important to a Mason. The "G" on the Masonic Emblem stands for God.
Within Masonic Lodges you will find men of varying religions. I have met Pastors of various Protestant denominations and like them have found nothing within Masonry to contradict or conflict with my Fundamentalist views.
Do I promote Masonry over Christianity? No, but then none of my Masonic Brothers who are Christians would either. It is much better for a person to be saved, but if they aren't saved there is still hope for them if they are joining a Masonic Lodge. While the Lodge doesn't directly teach about Christianity there is a very good chance they will be having contact with Christians outside the Lodge.
While I would love for the Lodge to solely give the teachings of Jesus, I also respect their wish to accept men of high character of all faiths.
All Shriners are Masons. First you would become a Mason and later on you could become a Shriner.